.cf{
	width: 70%;
	margin: 0 auto;
	
}
ul{
	width: 750px;
	list-style: none;
	margin: 0;
	padding: 0;
}
li{
	padding: 12px;
	border-bottom: 1px solid #eee4e0;
}
li:first-child;
li:last-child{
	border-bottom: 3px solid #777466;
}
span{
	width: 150px;
	display: inline-block;
	
}
.usually input{
	width: 220px;
	height: 20px;
	padding: 5px 8px;
	border:1px solid #2caaa0;
}
textarea{
	width: 300px;
	padding: 8px;
}
.usually input,textarea{
	background: url('images/attention.png') no-repeat;
	box-shadow: 0 5px 10px skyblue inset;
	border-radius: 2px;
	
}

.usually input:focus:invalid,
textarea:focus:invalid{
	background: url('images/warn.png') no-repeat 98% center;
	box-shadow: 0 0 5px red;
}

.usually input:focus:invalid,
textarea:focus:invalid{
	background: url('images/right.png') no-repeat 98% center;
	box-shadow: 0 0 5px #00aa00;
}

input[type=submit]{
	margin-left: 156px;
	background-color: #4ab939;
	color: white;
}